Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications
US6037841A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Oct 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transimpedance amplifier according to the present invention is designed for high-speed fiber optic communications. The transimpedance amplifier preferably includes an input stage, a second stage and a bias generator. The input stage is operably coupled to the second stage and has an input impedance. The second stage has an output impedance. The bias generator is operably coupled to the input stage and the second stage, and operates to bias the input stage and second stage such that the input impedance substantially matches the output impedance. In this manner, the input and output impedances of a transimpedance amplifier of a fiber optics communication receiver are controllable to a desired impedance for interfacing with a transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.